1720997

Information

• Patent Grant
• 1720997

• References
• Source

• Patent Number

  1,720,997

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1929
  95 years ago

• CPC

  • B42F13/30 - having a set of rods within a set of tubes for a substantial distance when closed

• US Classifications

  • 402 - Binder device releasably engaging aperture or notch of sheet